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https://issues.apache.org/jira/browse/HADOOP-12442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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nijel moved HDFS-9125 to HADOOP-12442:
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Key: HADOOP-12442 (was: HDFS-9125)
Project: Hadoop Common (was: Hadoop HDFS)
> Display help if the command option to "hdfs dfs " is not valid
> ---------------------------------------------------------------
>
> Key: HADOOP-12442
> URL: https://issues.apache.org/jira/browse/HADOOP-12442
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: nijel
> Assignee: nijel
> Priority: Minor
> Attachments: HDFS-9125_1.patch, HDFS-9125_2.patch, HDFS-9125_3.patch
>
>
> {noformat}
> master:/home/nijel/hadoop-3.0.0-SNAPSHOT/bin # ./hdfs dfs -mkdirs
> -mkdirs: Unknown command
> {noformat}
> Better to display the help info.
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